<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>成绩等级</title>
    <script type="text/javascript" src="js/index.js"></script>
</head>
<body>
    <label for="score">
        请输入查询分数<input type="text" class="score" id="score" value="" placeholder="输入分数" />
    </label>
    <input type="button" onclick="getlevel()" id="sbmit" value="查询" />
</body>
</html>